This SharePoint tutorial, we will discuss how to solve an error This field must be indexed to enforce unique values that come while adding a content type to list in SharePoint Online/2013/2016.
After that, we added those site columns to the content type. Then when we add those content types to any list the below error comes. The error message says: “This field must be indexed to enforce unique values”.
Edit the managed metadata site column and then change the “Enforce unique values: ” to Yes like below:
After this, we were able to attach content type to list.
You may like following SharePoint tutorials:
- Create an index in SharePoint Online list using CSOM
- SharePoint 2016/Online List View Auto Indexing Automatic Index Management
- How to create and remove the indexed column using PowerShell in SharePoint Online/2013/2016 list or document library?
This tutorial we learned, how to solve sharepoint this field must be indexed to enforce unique values error.
Bhawana Rathore is a Microsoft MVP (3 times in Office Apps & Services) and a passionate SharePoint Consultant, having around 10 years of IT experience in the industry, as well as in .Net technologies. She likes to share her technical expertise in EnjoySharePoint.com and SPGuides.com